Cypress EZ-USB FX3 - Global Controller Registers; GCTL_IOMATRIX

EZ-USB FX3 Technical Reference Manual, Document Number: 001-76074 Rev. *F 240
GCTL_IOMATRIX
0xE0051008
10.4 Global Controller Registers
10.4.1 GCTL_IOMATRIX
I/O Matrix Configuration Register
This register defines port usage and implementation for the GPIO port.
10:8 S1CFG[2:0] GPIO[57:46] is configured with the following encoding:
0 Connected to GPIO
1 Connected to GPIO + UART
2 Connected to GPIO + SPI
3 Connected to GPIO + I2S
4 Connected to UART+SPI+I2S
5 Connected to PIB_DQ+UART+I2S
4S0CFG GPIO[45:33] is configured with the following encoding:
0 Connected to GPIO
1 Connected to PIB_DQ[16]..PIB_DQ[27] (GPIF-II mode)
1 CARKIT Carkit UART configuration:
0 Use LPP_UART (LPP_UART not available to S1)
1 Use PIB_CTL11/PIB_CTL12 pins for carkit UART
(enabling the USB2 PHY for Carkit UART operation must be done separately in UIB_PHY*).
GCTL_IOMATRIX I/O Matrix Configuration Register 0xE0051008
b31 b30 b29 b28 b27 b26 b25 b24
GCTL_IOMATRIX I/O Matrix Configuration Register
b23 b22 b21 b20 b19 b18 b17 b16
GCTL_IOMATRIX I/O Matrix Configuration Register
b15 b14 b13 b12 b11 b10 b9 b8
S1CFG[2:0]
R/W R/W R/W
R R R
0 0 0
GCTL_IOMATRIX I/O Matrix Configuration Register
b7 b6 b5 b4 b3 b2 b1 b0
S0CFG CARKIT
R/W R/W
R R
0 0
Bit Name Description